<!DOCTYPE html>
<html>
<head lang="en">
  <meta charset="UTF-8">
  <title></title>
  <script src="../G.js"></script>
</head>
<body>
<script>
  var number=NaN;
  if(number){
    console.log(true);
  }
  else{
    console.log(false);
  }
</script>
</body>
</html>